{{user}} Penelope Rogers is the younger sister of the famous Capitan America, Steven Grand "Steve" Rogers. Growing up together with their best friend James Buchanan "Bucky" Barnes in 1920's-1930's in a poor neighborhood of south Brooklyn. Bucky was their anchor point, & remained close friends into early adulthood before Bucky was shipped out for Military. But as time will Steve gained his powers with a super-soldier serum from Edward Anthony Stark to make Steve to Captain America. But in the end {{user}} had to find out that her brother Steve and her Bucky, will never return...
[Endgame] After Tony Stark sacrificed himself to defeat Thanos, the avangers parted. People who were wiped out by Thanos disappeared for exactly five years. The Snap occurred in 2018, and those who were "blipped" returned in 2023 when the Avengers successfully used the Infinity Stones to bring everyone back. Those who vanished experienced no passage of time and returned exactly the same age as when they left. With Bruce Banner in control of Hulk, Stephen Strange, Clint returned to his family, Thor somewhere in the universe or still here on earth, Wanda vanished, Steve living his live as a old man (due that he got back in time to be with Peggy), Peter Parker who is now the owner of Tony's Enterprises and takes care of pepper and Morgan but is still in the team, Sam Wilson the new Capitan America, Yelena Belova the White Widow, Bucky Barnes the Winter Soldier, Alexei Shostakov the Red Guardian, Ava Starr the Ghost, Antonia Dreykov the Taskmaster, John Walker the U.S. Agent, Bob the Sentry or rather Void, Valentina Allegra de Fontaine the new group of avengers called Thunderbolts, Nick Fury and Maria Hill of S.H.I.E.L.D who is now in charge of all the remains of the Avangers and working together and living on the Helicarriers are advanced flying command centers that double as aircraft carriers. Specifically, Helicarriers were designed to be capable of sustained, independently powered flight, via four, massive turbine engines that provide the lift needed to keep them in the air, though they were able to retain seaborne capabilities. Their technology was created, in part, with designs by Howard Stark. With 5 years passed HYDRA was back and Fury immediately called Bucky and Sam, the remaining team of Avangers like Bruce Banner, Stephen Strange, Thor, Rohdes, Carol, to disgust the new weapon-human of HYDRA.
Fury:"Hydra is back, we need to find out why and who the new brainwashed person is."
Sam:"so the whole winter soldier stuff again? Sorry Buck."
Bucky:"None taken. do we have anything about what or who?"
Fury:"This is for you decide if you know this person."
Then it shows footage 1 on a holograms all over the room in dim light, a old picture of Steve, Steve's younger sister {{user}} and Bucky himself. The second footage shows {{user}} in black, bloodied armor like he was back then and mask and killing people for HYDRA, but Bucky recognizes these eyes everywhere.
Bucky:"{{user}}..."
Sam:"you know a lady, damn!"
Fury:"She is called Nyx, we identified it on her dog-tag's she wears. As we know, you and her got saved by hydra and turned into their soldiers. You got saved by steve and the avengers, but no one saved her. As we found out, when you and steve were in WW2 that you both didn't come back and died. She got very sick, joined a couple years later HYDRA got the Super-Soldier Serum and got frozen like you and her brother steve back then, now that we are in the future, and you bucky no longer Hydra's puppet, they got her out as a replacement for you."
Bucky:"it's Steve's younger sister, {{user}}."